Pulley-bearing



(No Model.)

H. W. HILL.

PULLEY BEARING. No. 337,953. Patented Mar. 16, 1333.

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SPECIFECATIN forming part of Letters Patent No. 337,953, dated lVIarch 16, 1886.

Application tiled March Q3, 1855.

To @ZZ whom, t may concern.-

Be it known Ithat I, HARRY NV. HILL, a citizen ot' the United States, residing at Beloit, in the county of Rock and State ot" Visconsin, have invented certain new and usei'ul Improvements in Pulley-Bearings, ot' which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to improvements in removable pulley-bearings formed ot' two halves connected together; and the object of my improvements is to provide means for connecting these bearings with set collars and sleeves tofacilitate the rebabbitting or renewal thereof.

The invention will first be described in connection with the drawings,and then be pointed out in the claims.

In the drawings, Figure l is a vertical section oi' a pulley with its loose sleeve or removable bearing and setcollar in elevation and mounted upon a. shaft. Fig. 2 is a l'ront view ot' the set-eollar. Fig. 3 is a front view of the hub of the pulley and its loose sleeve. Fig. 4 is a side view of the loose sleeve retained between the two halves of the set-collar. Fig. 5 is a front view of one part of the set-collar. and Fig. 6 the other part ofthe set-collar. Fig. 7 is a longitudinal section of the detachable parts shown in Fig. 4.

In said drawings, A represents a sleeve or removable pulley-bearing split lengthwise' or formed ot' two halves, and provided with circular Vbosses A at each end and circular bosses A between them. Through this segmental sleeve the shaft B passes, upon which it revolves with the pulley wheel or gear carried thereby. Gn said shaft and adjoining the end boss, A, is located a setvcollar cornposed of two parts, C and C', as shown in Fig. l. The part C is provided with side projections or bosses, c, and spaces c2 on the inner side thereof, to engage with a similar face on the part C. In its capacity of seteollar, C is secured to the shaft B by means of a set-screw, C2, which passes therethrough. The projections or bosses c and c tit snugly in the spaces c2 and c3, so that the parts C C revolve together with the shaft B, and there Serial No. 159,775. (No model.)

is thus no wear of their eye, which would be the case ifthese were allowed to revolve loosely on the shaft.

The pulley-wheel D, as shown in Fig. I, is firmly secured to the circular bosses A2 ofthe sleeve A by means of set-screws d passing through the hub D at its outer ends. The sleeve A or removable pulleybearing is made in two parts or halves, to facilitate the renewal or' its bore when used with loose pulley-wheels, gears, &c., as they become much worn in course ot' time by reason of the shaft revolving loosely therein, deranging their alignment and central position to said shaft, necessitating throwing aside comparatively good pulleywheels, &c., and replacing them at considerable expense with new ones.

llIy split sleeve A and the means to retain its parts together are designed to reduce this expense, inasmuch as being in two parts it can be easily taken out ot' a pulley, wheel, gear, Src., without taking down or in an n ay disturbing the shai'ting; and if babbitted, the old or worn babbitt can be readily taken out, the two parts being placed together on the shaft, as shown in Fig. 4, with the tWo parts C and C of the set-collar separated sufticiently to receive the removable pulleybearings or sleeve A between them, and the side projections, c and c, being fitted internally to receive the externally iinished or turned rings or circular bosses A on each end of the removable bearing A. It is evident that it' both ends of said bearings are inserted into and between the dental projections c and c or bosses ot' C and C the hub or sleeve A will be held exactly central to and in line with its shaft.

It' babbitt be poured into each half of the sleeve A at holes or perforations a, the bore ofthe sleeve A will be perfectly and cheaply renewed.

In Figs. 4 and 7 the two parts C and C of the set-collar are shown separated, or one at each end of the sleeve A, and the latter retained in position to be babbitted.

Having now fully described my invention, I claim- 1. The combination of the removable pulley-bearing A,forn1ed of two segmental parts,

vrith collars secured to the shaft thereof and ing, substantially as and for the purpose dedesgned to inclose the periphery of the ends scribed.

of said segmental parts, substantially as and for the purpose described.

2. The combination of the removable pulleybearing A,formed of two segmental parts,with collars C and C', )rovided With side projections adapted to receive the ends of said bear- In testimony whereof I ax my signature in presence of two witnesses.

" HARRY `W. HILL.

Witnesses:

EVANS BLAKE, E. P. WHEELER. 

